The Choudhri Lab: Advancing the Frontiers of Neurovascular Science

“Expert diagnosis and treatment from a neurosurgeon who specializes in finding — and fixing — the cause”

Understanding Pulsatile Tinnitus

Pulsatile tinnitus is a rhythmic sound in one or both ears that beats in time with your heartbeat. Patients describe it as whooshing, thumping, pulsing, or a rushing water sound. Unlike ordinary tinnitus—which is typically a constant ringing or buzzing caused by damage to the inner ear—pulsatile tinnitus almost always has an identifiable, vascular cause.

This means pulsatile tinnitus is not something you simply have to live with. In the majority of cases, the underlying cause can be found through proper investigation, and in many cases, it can be treated or cured entirely.

If you have been told that pulsatile tinnitus is “just tinnitus,” that there is nothing that can be done, or that you should simply learn to cope—you may not have received a complete evaluation. A thorough neurovascular workup can identify treatable causes that are missed by standard ENT or audiology assessments.

What Causes Pulsatile Tinnitus?

Pulsatile tinnitus can be caused by a variety of vascular conditions, some of which carry real health risks. A specialist evaluation is important to determine which cause is present and whether treatment is needed.

Dural Arteriovenous Fistula (dAVF)

An abnormal connection between arteries and veins in the covering of the brain, often located near the ear at the transverse-sigmoid sinus junction. dAVFs are one of the most important causes of pulsatile tinnitus to identify because some types carry a risk of stroke or brain hemorrhage. The good news: dAVFs are highly curable through minimally invasive endovascular embolization, with many patients experiencing immediate resolution of their pulsatile tinnitus after treatment.

Venous Sinus Stenosis

Narrowing of the large veins that drain blood from the brain can create turbulent blood flow near the ear. This turbulence is what you hear as a pulsing sound. Venous stenosis is frequently associated with idiopathic intracranial hypertension (IIH) and can cause headaches, visual disturbances, and pulsatile tinnitus. Treatment with venous sinus stenting can relieve symptoms.

Venous Sinus Diverticulum

A small outpouching or pocket in the wall of a venous sinus, typically near the sigmoid sinus close to the ear. Blood swirling through this outpouching creates turbulent flow that you hear as pulsatile tinnitus. While not dangerous, diverticula can cause severely debilitating symptoms. Endovascular treatment with coil embolization of the outpouching can resolve the tinnitus while preserving normal sinus flow.

Idiopathic Intracranial Hypertension (IIH)

Elevated pressure around the brain without a structural cause. Patients experience severe headaches, pulsatile tinnitus, visual disturbances, and risk of permanent vision loss. IIH is increasingly understood to involve venous sinus stenosis, and treatment options include medications (acetazolamide), emerging therapies (GLP-1 receptor agonists like semaglutide), venous sinus stenting, and shunting.

Atherosclerotic Carotid Disease

Plaque buildup in the carotid arteries can create turbulent blood flow that you hear as pulsatile tinnitus. Identified through carotid ultrasound and treated with surgical or endovascular revascularization if significant.

Paraganglioma (Glomus Tumor)

A rare, typically benign tumor rich in blood vessels that grows near the ear (glomus tympanicum or glomus jugulare). Treatment may involve surgery, embolization, radiosurgery, or observation depending on size and location.

Other Vascular Causes

  • Arteriovenous malformations (AVMs) near the skull base
  • High-riding or dehiscent jugular bulb
  • Aberrant internal carotid artery
  • Vascular anomalies of the temporal bone
  • Benign intracranial hypertension from other causes

The Diagnostic Approach

Step 1: Clinical Evaluation

A thorough history and physical examination is the foundation. Dr. Choudhri will ask about the character, laterality, and timing of your tinnitus; associated symptoms including headaches, visual changes, and hearing loss; and any triggering or relieving factors. Physical examination includes auscultation (listening with a stethoscope) over the skull, neck, and periauricular region.

Step 2: Initial Imaging

  • MRI / MRA of the Brain: Evaluates brain structures and blood vessels for abnormalities including AVMs, fistulas, and tumors.
  • CT Angiography / CT Temporal Bone: Provides detailed imaging of the arteries, veins, and bony anatomy near the ear.

Our published diagnostic algorithm for pulsatile tinnitus guides the sequence and selection of imaging based on clinical findings.

Step 3: Cerebral Angiography (When Indicated)

For patients whose initial imaging suggests a vascular cause—or when initial imaging is normal but clinical suspicion remains high—catheter-based cerebral angiography provides the highest-resolution view of the brain’s blood vessels. This minimally invasive procedure is typically performed through a small puncture in the wrist and can identify dural fistulas, venous stenosis, and other causes that are invisible on non-invasive imaging.

Step 4: Advanced Venous Imaging

Dr. Choudhri has pioneered the use of balloon-assisted retrograde cerebral phlebography—an advanced catheter-based technique for visualizing the cerebral venous system with unprecedented detail. This technique can reveal venous diverticula, subtle stenoses, and emissary vein anatomy that conventional angiography may miss. It has been presented at the SNIS Cerebral Venous and CSF Disorders Summit and the North American Skull Base Society meeting.

Many patients with pulsatile tinnitus have been told their imaging is “normal”—but standard imaging may not include the specialized venous protocols needed to identify the cause. If you have had an MRI or CT that was read as normal but your symptoms persist, a more targeted evaluation may reveal the answer.

Treatment Options

Treatment depends entirely on the underlying cause. The encouraging news is that many causes of pulsatile tinnitus are highly treatable, and in some cases, curable.

  • Endovascular Embolization: For dural arteriovenous fistulas, catheter-based delivery of embolic agents (Onyx, coils) to the fistula point can provide complete cure. Many patients report immediate resolution of their pulsatile tinnitus upon awakening from the procedure.
  • Venous Sinus Stenting: For venous stenosis with or without IIH, placement of a self-expanding stent restores normal venous drainage and can dramatically reduce or eliminate symptoms.
  • Venous Diverticulum Coiling: Targeted embolization of a venous outpouching eliminates the turbulent flow causing the sound while preserving normal sinus function.
  • Medical Management for IIH: Acetazolamide, weight management, and emerging therapies including GLP-1 receptor agonists (semaglutide). Dr. Choudhri’s team has published a systematic review and meta-analysis on the efficacy of GLP-1 agonists in IIH.
  • Microsurgical Treatment: For complex dural fistulas or tumors not amenable to endovascular therapy.
  • Observation: Some causes, once confirmed to be low-risk, can be safely monitored.

Most endovascular procedures are performed through the wrist (transradial or transulnar access), allowing patients to sit up and walk immediately after the procedure.

Patient Stories

Frequently Asked Questions

Is pulsatile tinnitus dangerous?
Pulsatile tinnitus itself is a symptom, not a disease. However, some of its causes—particularly dural arteriovenous fistulas with cortical venous drainage—can carry a real risk of stroke or brain hemorrhage if left untreated. This is why a thorough evaluation to identify the underlying cause is important, even if the sound itself seems more annoying than alarming.
Yes, in many cases. When the cause is identified and treated—for example, by embolizing a dural fistula or stenting a venous stenosis—many patients experience complete resolution of their symptoms. Some patients report that their pulsatile tinnitus disappears immediately after the procedure
Absolutely. Standard MRI and CT protocols may not include the specialized vascular and venous sequences needed to identify all causes of pulsatile tinnitus. A more targeted workup—including dedicated vascular imaging and, in some cases, catheter angiography with venous phase evaluation—can reveal causes that standard imaging misses.
Yes. Dr. Choudhri holds medical licenses in 10 states and offers telemedicine consultations for initial evaluation. If you send your imaging records in advance, Dr. Choudhri can review them and discuss next steps via video visit. If treatment is recommended, travel coordination is provided.
If your pulsatile tinnitus is truly synchronous with your heartbeat (you can feel it matching your pulse), it likely has a vascular cause that requires evaluation by a neurovascular specialist. An ENT evaluation is still valuable for ruling out middle ear pathology, but the vascular workup requires specialized imaging that a neurovascular team can coordinate. Dr. Choudhri’s multidisciplinary pulsatile tinnitus program works collaboratively with ENT colleagues.
Sound masking devices and hearing aids can provide symptomatic relief for ordinary tinnitus, but they do not address the underlying vascular cause of pulsatile tinnitus. If a treatable cause is identified, treating it can eliminate the sound entirely—which is a far better outcome than masking it.
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